troubleshooter
🇺🇸
/ˈtrʌblʃuːtər/
🇬🇧
/ˈtrʌblʃuːtə(r)/
A person who finds and fixes problems.
The IT department called a troubleshooter to help with the computer issues.
IT部门叫来了一位故障排查员来帮助解决计算机问题。